Researchers studying innovation increasingly use indicators based on patent citations. However, it is well known that not all citations originate from applicants - patent examiners contribute to citations listed in issued patents - and that this could complicate interpretation of findings in...

An essential aspect of "catching up" by developing countries is the emulation of technological leaders and the rapid accumulation by individuals and organizations of the knowledge and capabilities needed in order to sustain processes of technical learning. The rates and patterns of development...

We investigate whether patents on human genes have affected follow-on scientific research and product development. Using administrative data on successful and unsuccessful patent applications submitted to the US Patent and Trademark Office, we link the exact gene sequences claimed in each...

Analysis of patent citations is a core methodology in the study of knowledge diffusion, and forward citations are used as a measure of impact of innovations. However, citations made by patent examiners have not been separately reported, adding unknown noise to the data. We leverage a recent...

The localization of knowledge flows has been attributed to agglomerations of knowledge-intensive firms in a region, but I argue that knowledge localization is not consistent with the wider social and professional networks of the firms' employees. I predict that small, knowledge-intensive firms...